如何用javascript更改dropdownlist选择的索引? [英] How to change dropdownlist selected index with javascript?
问题描述
请在下面的任何一个帮助要求。这对我来说非常有用。提前谢谢
请在下面的任何一个帮助要求。这对我来说非常有用。提前谢谢
例如我在表单中有两个下拉列表,如果我在第一个下拉列表中单击值。自动分别显示下拉列表中的秒数。
Please any one help below requirements. It would be very useful for me . Advance Thanks
Please any one help below requirements. It would be very useful for me . Advance Thanks
for example I have two dropdown list in form , If I click values in first dropdown list. automaticaly respective values to show the scecond in drop down list .
A- dropdown list B- drop down list
A 001
B 002
C 003
例如如果我在第一个下拉列表中点击C值。自动分别显示003下拉列表中的秒数
参考:
for example If I click values "C" in first dropdown list. automaticaly respective values to show "003" the scecond in drop down list
Reference:
A-drop downlist B-drop downlist
C 003
i我是JavaScript新手请任何人帮助我...
i am new to JavaScript please any one help me ...
推荐答案
嗨会员10463904,
我准备了一个样本供您参考,请看下面的代码示例:
HTML
Hi Member 10463904,
I have prepared a sample for your reference, please go through the below code example :
HTML
<form id="form1" runat="server">
<div>
<select id="dpdFirst">
<option value="A">A</option>
<option value="B">B</option>
<option value="C">C</option>
</select>
<select id="dpdSecond">
<option value="1">001</option>
<option value="2">002</option>
<option value="3">003</option>
</select>
</div>
</form>
SCRIPT(jQuery)
SCRIPT(jQuery)
<head runat="server">
<title></title>
<script src="Script/jquery-2.0.3.js"></script>
<script type="text/javascript">
<pre lang="Javascript">
( function (){
(' #dpdFirst')。change( function (){
var vFirst =
('#dpdFirst').change(function () { var vFirst =
这篇关于如何用javascript更改dropdownlist选择的索引?的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!